Given cos a = .25 find angle a in degrees. round your answer to the nearest hundredth. a. 34.12° b. 123.98° c. 56.78° d. 75.52°

answer: the equation matches the regression

step-by-step explanation:

one that is bigger than 3 1/2

step-by-step explanation:

there is a formula i can give you:

it is r^2*n*sin(360/n) divided by 2 where r represents the "radius" and n is the number of sides.

plug them in:

(10sqrt(3))^2*6*sin(360/6) divided by 2

100*3*6*sin(60) divided by 2

900*sin(60)

900*sqrt(3)/2

450*sqrt(3)

approx is 779.4 cm^2